Carbureting-lamp.



Patented May I, |900. G. C. CALENTINE & S. D. LUDLOW.

CARBURETING LAMP.

ion ld June 24, 189B. Renewed May 19, 1899.)

(Applicat (No Model.)

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` NITED STATES ATENT Erica.

GEORGE C. OALENTINE AND STEPHEN D. LUDLOV, OF OMAHA, NEBRASKA,ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, TO THE PERFEOTIONINCANDESCENT GAS LAMP COMPANY, OF SAME PLACE.

CARBURETINGi-LAIVI P.

SPECIFICATION forming part of Letters Patent No. 648,682, dated'VIay 1,1900. Application tiled .Tune 24, 1898. Renewed May 19, 1899. Serial No.717,482. (No modeLl ro it appertains to make and use the same, referencebeing had to the accompanying drawings, which form apartof thisspecification.

Our invention relates to vapor-lamps, and

has for one object to provide a lamp adapted for using gasolene or otherhydrocarbon-oil asafuel wherein thevaporizationof the fuel byheat may beavoided, but wherein suchV vaporizationis accomplished by passing acurrent'of air over the fuel while in a distributed' zo condition toenable the air to take up a suffi?.

cient quantity of the vapor and to carry thev same in athoroughly-intermingled condition to the burner to produce a highly-inflammable and practically-colorless lightfor use in connection with anincandescing-or illuminating mantle. It is a desideratum in devices ofthis class to provide a portable apparatus of compact arrangementwherein is contained the reservoir which supplies the fuel and 3o whichmay be-replenished at intervals, and particularly to provide such anarrangement of parts as to insure the communication of a large volume ofair to the burner as compared with the quantity of fuel-vapor, owing tothe fact that the use of the incandescing mantle insures the productionof a brilliant light with a 'comparatively-small quantity of fuel,provided the combustion is perfect.

Further objects and advantages of this invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure l is a side view of a lamp constructed inaccordance with our invention. Fig. 2 is avertical sectional view of thesame.

Similar reference characters indicate corresponding parts in bothfigures of the drawings.

of, the ordinary construction. l .which we have illustrated in thedrawings O ur invention embodies, essentially,` a feed- 5o tube l,preferably having a graduating or controlling valve or cock 2, whichmaybe of any preferred construction, an open-ended vaporizing-chamber 3,containing fuel-distributing devices and constructed and arranged toprovide for causing acurrent of air,preferably in a downward direction,therethrough to tale up fuel-vapor, and a burner-tube 4, communicatingwith one end of the vaporizing-chamber andjextending to aburner 5,substantially 6o The burner embodies a perforated burner-cap 6, fittedto the endI ofv the burner-tube 4, whichmay be of-any shape orconfiguration to s-uitthe location and use of the lamp,fan incandescent-mantle 7, fitted at its lower end over said cap and upheld by theusualadjustable supportving-rod S, which is fitted at its lower end in yan eXteriorly-accessible socket 9, a gallery l0, 7o having theusualshade-brackets ll, and the chimney or globe 12, Vsupported by thegallery.

The vaporizing-chamber 3, which .is preferably elongated vertically andmay be ofl cylindrical form, as shown, is open at its upper end for theaccess of air, lwhile its lower end is in communication with theconveyer` by which the vapor is carried by a column of air to theburner, and the drip-tube or-feed-tube `l extendsdownward into saidvaporizing- 8o chamber to a point below the upper end thereof, wherebyair in entering thev vaporizingchamber passes downward throughtheannular space between the drip-tube andthe walls of the cylindricalchamber. It isA desirable 8 5 also to provide means for regulating therapiditytof the influx of air to the vaporizingchamber, and hence wepreferably employ an air valve or register which may be adjusted from apoint outside of the lamp to se- 9o cure the entrance of a quantity ofair which is just sufiicient to support the combustion d of thevaporized fuel and insure a colorless flame at the burner-cap. It isalso desirable in a lamp which is designed for interior use to provide amore or less ornamental and finished exterior appearance, and thereforein the lamp which we `have illustrated in the drawings (and which isdesigned for indoor use in contradistinction to those lamps which may beused for furnishing street-lights) the vaporizing-chamber 3 is inclosedwithin a casing 13, which may be of any desired crosssectional shape,but of which the walls are spaced from the adjacent walls of thevaporizing-chamber to form an annular space or passage which at itsupper end communicates with the interior of the vaporizing-chambcr. Theburner-tube or conveyer 4 extends from the lower end of thevaporizing-chamber through the side wall of this casing,and the latterpreferably extends below the plane of said burner-tube and is litted atits extremity with an air valve or register let. Thus the air which isto act as a vehicle and combustionsupporter for the fuel-vapor mustenter the casing at its lower end through the inlet-,openings contrqlledby the air valve or register, and thence must pass upward between thewalls of the vaporizing-chambcr and the casing to the upper end of saidchamber, and

.casing which depends below the laterally-extending burner-tube may bemade of ornamental exterior conigurationto give a finished appearance tothe structure.

The drip or feed tube extends downward from a point above the upperclosed end of the casing,throu gh saidclosed end,and thence downwardinto the upper end of the Vaporizing-chamber, it being desirable toliberate the fuel at a point sufficiently removed from the upper end ofthe vaporizing-chamber to insure the proper. downward conveyance of allvapor which may emanate therefrom, and

in the feed-tube, above the plane of the top of the casin g, ispreferably set a glass or other transparent inspection -panel l5,arranged below the regulating-valve 2, whereby the operator mayascertain the rapidity of flow of the fuel to the vaporizng-chamber.Seated upon the upper end of the feed-tube, above the plane of theregulating-valve, is a fuel reservoir or tank, consisting ofa can1G,Which may be of any preferred construction and which, particularly ina lamp designed for indoor use, is inclosed in an auxiliaryreservoircasing 17, having a side opening` fitted with a door 18 tofacilitate the introduction and removal of the reservoir for filling andother purposes. This opening in the side of the auxiliary casing, whichpreferably rises from the top of the main casing 13, may extend downwardto the plane of the top of the main casing, whereby when the door isopened the inspection-panel is Within view of the opera! tor. Also theregulating-valve is preferably provided with a laterally-extending stem18', projecting through the side wall of the auxiliary casing and fittedwith arms, to which are connected.operating-chains 19.

The vaporizing devices which we have shown in connection with thevaporizingchamber consist of a perforated or reticulated distributingmedium 20, arranged below the feed tube and in the path of liquid fueldropped therefrom, and above this distributing medium is arranged asmall disk 2l, forming a splaslrplate, upon which the liquid drops andby which it is distributed to the adjacent portions of the medium 20.This splash-plate, particularly inconnection with an in verted conicaldistributing medium such as that shown in the drawings, is supported inthe base or .large end ofthe cone by means of upwardly-convergent rods22, which serve the additional function of carrying the liquid from thesplash-plate to the different portions of the surface Aof thedistributing medium. Also in the construction illustrated the base ofthe inverted conical distributing medium is of a size adapting it to fitsnugly in the bore of the cy-linder formingthe vaporizing-chamber,whereby all of the air which enters the chamber at its upper end mustpass through the perforations or openings in the distributing medium,and thus must be brought into intimate contact with vthe fuel which isdistributed upon said medium toinsure the taking upof the necessaryamount of vaporized fuel to produce an inflammable mixture. Furthermore,the illustrated shape of the distributing medium is such as to cause theair to be deflected as it passes through the mediu in, whereby it isbrought into efficient contact with the fuel in 'its'passage `As anauxiliary feature of the construction illustrated, we employ asuspending-stem 23, which rises from the top of the auxiliary casing 17and terminates in a hook 24E for engagement with a suspending-ring 25,and fitted for adjustment uponthe stem is a canopy orvinverted bell 26,held in place by a set-screw 27 and adapted to be arranged at the upperend of the stem to inclose the interlocked hook and ring and bear at itsedge against the ceiling or vother surface in which the ring is securedto hold the stem xed in a vertical position, thereby preventing swingingor vibration of the lamp.

It is to be observed that the lamp of our invention includes as aprimary feature thereof a bent or irregularly-shaped tube having its twoends upwardly turned, one end of said tube extending some distance abovethe other end,and said long end being of considerablygreatercross-sectional area for the purpose of providing a vaporizing-chambertherein, the shorter end of the tube carrying or supporting anincandescent burner. This doubled or bent tube supports Within the endforming the vaporizing-chamber, a funnel and splashplate whichconstitute the vaporizing device from the fact that the liquidhydrocarbon is IIO dropped upon the splaslrplate in a manner to bediffused over the surface of said plate and the funnel, and thus airwhich is drawn through the vaporiZing-tubc and the vaporizing device isbrought into intimate contact with the diffused liquid hydrocarbon, sothat the air will be carbureted as it traverses thevaporiZing-tube,without,however, subjecting the air to the heat from theincandescent burner.

The lamp of our invention embodies two primary features-namely, anarrangement of the vaporizing-chamber forming a part of the bent ordoubled vaporiZing-tube having the air-inlet port and the oilsupplymechanism so arranged as to secure the passage of an air-current andthe'liquid hydrocarbon through the vaporizing-chamber in one and thesame direction for the purpose of mechanically combining the diffusedliquid hy'- drocarbon with the air-current, and, secondly, theburner-tube itself supports at its short lower end an incandescentburnervwhich receives the carbureted vapor from the doubled tube.l Thisburner when in service promotes or induces thecirculation of thecarbureted vapor through the vaporizing-chamber, and said burner islimited to draw its supply of carbureted` air to support combustion fromthe vaporiZing-chamber of the tube', whereby a relatively-large volu meof air will be drawn bythe action of the burner through the air-inletport of the vaporiZing-chamber, so that all the air supplied to theincandescent burner must traverse the Vaporizing device and thevaporizing-chamber.

Thus it will be seen that there has been provided a lamp in which theparts are compactly arranged and in which the fuel of the lamp may bevaporized outside of the zone of heat of the burner and that such vaporis presented to the burner mixed with a suitable proportion of air toproduce an effective iame. Also, it will be seen that the air introducedinto the vaporizing-chamberis brought into Contact with the fuel at atime when the latter is thinly distributed over a large area, vresultingin a quick and complete vaporization. It will be understood,furthermore, that various changes in the form, proportion, size, andminor details of construction within the scope of the appended claimsmay be resorted to without departing from the` spirit or sacrificing anyof the advantages of the invention.

Having described our invention, what we claim is- 1. In a vapor-lam p,the vaporizing-chamber to which air is admitted, the inverted conicalperforated distributer, having its upper end fitted closely in saidvaporizing-chamber, the splash plate ordisk 2l, located centrally in theupper end of the said distributer and forming an annular air passagebetween said splash plate or disk and said distributer, and thefeed-rods 22 leading from said splash plate or disk to the interiorsurface of said Aa diameter less than and positioned within said casing,a burner-pipe extending from the lower end of said cylinder through thewall of said casing at a point above the air-valve and provided withanincandescent burner at a point kremote from said casing, a perforatedcone positioned, apex downward, within and near the upper end of saidcylinder, asplashfplate positioned within the upper end.l of saidperforated cone, below said drip-tube, arms radiating from saidsplash-plate and secured to said perforated cone, and a perforated'capat the open end of said pipe, all arranged substantially asand for thepurpose set forth.

In al carbureting-lamp, the combination of va housing, 17., a mainhousing, 13, secured -to the'lower end of said housing, 17, a valvedreservoir, 16, within said housing, 17, a driptube 1` extending fromsaid reservoir into said main housing, 13, an air-valve, 14, within thelower lend of said main housing, 13, a cylinder, 3, within, said mainhousing, a burnertube,'4, extending from said cylinder, said burner-tubebeing provided with a burner at its end remote from the casing, aperforated inverted cone, 20, positioned within said cylinder, 3, theradiating arms, 22, within said cylinder, and the splash-plate, 21,secured to said arms withinv the upper end of the cone, substantially asspecified. y

it. In a lamp, the combination, with a casing provided with a door andmeans for suspending'it in a vertical position, of a feed-receptacletherein, the bottom of which is provided with a tube and projects belowsaid casing, a valve in said tube, the outer end of the stem of whichprojects through the casing and is provided with means for rotating it,a Vaporizing-tube, one end of which is below the feed-receptacle and isprovided with a vaporizer, and the other end is provided with anincandescent burner.

5. In a lamp, the combination, with a substantially-cylindrical casing,the lower end of which is contracted and provided with a slot* tedspherical portion, of a vaporizing-tube projecting through the side ofsaid casing above said spherical portion, the outer end of which isprovided with an incandescent burner and the inner end is provided witha vaporizer, and means for feeding oil to said vaporizer.

G. In a lamp, the combination, with a substantially cylindrical casing,each end of IOO IIO

which is annularly contracted and the upper portion is formed into aseparate compartment and the lower end is formed into a slotted sphere,of a vaporizing-tube projecting through the side of the casing above thesphere, the outer end of which is provided of which is provided with aValved feed-tube which projects into the lower portion of the casing andterminates intermediate the top of the vaporizing-tube and thesplash-plate.

7.v In a lamp, the combination, with a. substantially-eylindricalcasing, the lower end of which is provided with a slotted sphericalpor-A within the top of the vaporizing-tube provided with asplash-plate, and a feed-receptacle, the outlet of which is above thesplashplate and below the top of the vaporizing- I tube.

In testimony whereof We have aixed our signatures, this 15th day ofJune, 1898, in the presence of two Witnesses.

GEORGE C. CALENTINE. STEPHEN D. LUDLOV. NVitn esses:

EDWARD REITER, GEORGE W. Suus.

